the pharmacokinetic parameters of ceftazidime, a third generation cephalosporin, were investigated in six buffalo calves after single intravenous (iv) and intramuscular (im) administration at a dose rate of 10 mg/kg body weight. ceftazidime concentrations in plasma and urine were determined by microbiological assay. ceftazidime disposition was best fitted by a two-compartmental and a one-compar...

BACKGROUND AND OBJECTIVE Pharmacologic studies on blasts from patients with leukemia are generally performed on density gradient isolated blood or bone marrow cells. Thereby, cellular drug accumulation and efflux are determined as mean values of the entire cell population. The objective of the present study was to characterize the heterogeneity in the accumulation and efflux of daunorubicin in ...

the pharmacokinetics of cefpirome was investigated in buffalo calves following its single intramuscular (im) administration (10 mg). the peak plasma concentration of cefpirome at 30 min was 9.0 ± 0.5 μg.ml-1, which declined to 0.2 ± 0.1 μg.ml -1 at 24 hrs. the absorption half-life (t1/2ka) and elimination half-life (t1/2 β) were 0.19 ± 0.03 hr and 2.39 ± 0.05 hr, respectively. the area under th...

Adriamycin dosage should be reduced in patients with impaired liver function, since adriamycin disposition is influenced by liver metabolism and biliary excretion. It follows that drugs that increase the metabolism or excretory capacity of the liver may decrease adriamycin concentrations to suboptimal values. Adriamycin metabolism was therefore studied in mice pretreated with phenobarbital (75 ...

Outcomes of patients with acute myeloid leukemia (AML) improve significantly by intensification of induction. To further intensify anthracycline dosage without increasing cardiotoxicity, we compared potentially less cardiotoxic liposomal daunorubicin (L-DNR) to idarubicin at a higher-than-equivalent dose (80 vs 12 mg/m(2) per day for 3 days) during induction. In the multicenter therapy-optimiza...

Anthracycline daunorubicin (DNR) is one of the major antitumor agents widely used in the treatment of myeloid leukemia. Unfortunately, the clinical efficacy of DNR was limited because of its cytotoxity at high dosage. As a novel cytoprotective mechanism for tumor cell to survive under unfavorable conditions, autophagy has been proposed to play a role in drug resistance of tumor cells. Whether D...

Although pre-B acute lymphoblastic leukemia (ALL) is the most common type of renal leukemic infiltration; the renal infiltration with leukemia cells as the initial manifestation of leukemia is very rare. Translocation (1;19)(q23;p13) is one of the most common chromosomal abnormalities in patients with ALL and is observed in 5 - 6% of children with pre-B ALL. However, the incidence of t(1;19) in...

Idarubicin, a new analogue of daunorubicin, was administered i.v. at a dose of 15 mg/m2 to 31 previously treated patients with unfavorable non-Hodgkin's lymphoma. Clinical characteristics included median age, 69 years; performance status, 1; and prior chemotherapeutic regimens, 1. Twenty of the patients were relapsing after prior therapy and 11 were refractory; 29 had received prior anthracycli...